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Related Experiment Videos

Reporting BRCA test results to primary care physicians.

L M Sandhaus1, M E Singer, N V Dawson

  • 1Department of Pathology, Case Western Reserve University School of Medicine, University Hospitals of Cleveland, OH 44106, USA.

Genetics in Medicine : Official Journal of the American College of Medical Genetics
|September 8, 2001
PubMed
Summary
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Graphic formats may improve physician understanding of BRCA cancer risk information. Physician knowledge of cumulative risk is crucial for accurate interpretation of genetic testing reports.

Area of Science:

  • Genetics
  • Medical Informatics
  • Epidemiology

Background:

  • Genetic testing for BRCA1/2 mutations is increasingly common.
  • Accurate interpretation of cancer risk information is vital for patient counseling.
  • Physician comprehension of complex genetic risk data can be a challenge.

Purpose of the Study:

  • To assess the impact of data presentation format (tabular vs. graphic) on physician comprehension of BRCA cancer risk information.
  • To identify physician characteristics influencing the understanding of genetic risk reports.

Main Methods:

  • A survey was administered to primary care practitioners using a case vignette.
  • Participants interpreted a hypothetical BRCA1/2 gene analysis report with risk data in either tabular or graphic format.

Related Experiment Videos

  • Comprehension was measured by responses to questions on probabilistic cancer risk.

    • Main Results:

    • Physician knowledge of cumulative risk was the sole significant predictor of comprehension (OR = 31.9; P < 0.001).
    • Graphic formats showed a trend towards better risk communication than tabular formats, though not statistically significant (OR = 3.1; P = 0.102).

    Conclusions:

    • Many physicians may lack the necessary understanding of epidemiologic terms to interpret genetic risk information effectively.
    • Enhanced data visualization and targeted education may be needed to improve physician interpretation of genetic risk reports.